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29
30#include <QtCharts/QPieLegendMarker>
31#include <private/qpielegendmarker_p.h>
32#include <QtCharts/QPieSeries>
33#include <QtCharts/QPieSlice>
34
35QT_CHARTS_BEGIN_NAMESPACE
36
37/*!
38 \class QPieLegendMarker
39 \inmodule QtCharts
40 \brief The QPieLegendMarker class is a legend marker for a pie series.
41
42 A pie legend marker is related to QPieSeries. With a pie series, each slice of the pie
43 is related to one marker in the legend.
44
45 \sa QLegend, QPieSeries, QPieSlice
46*/
47
48/*!
49 \fn virtual LegendMarkerType QPieLegendMarker::type()
50 \reimp
51*/
52
53/*!
54 \internal
55*/
56QPieLegendMarker::QPieLegendMarker(QPieSeries *series, QPieSlice *slice, QLegend *legend, QObject *parent) :
57 QLegendMarker(*new QPieLegendMarkerPrivate(this,series,slice,legend), parent)
58{
59 d_ptr->updated();
60}
61
62/*!
63 Removes the legend marker for a pie series.
64*/
65QPieLegendMarker::~QPieLegendMarker()
66{
67}
68
69/*!
70 \internal
71*/
72QPieLegendMarker::QPieLegendMarker(QPieLegendMarkerPrivate &d, QObject *parent) :
73 QLegendMarker(d, parent)
74{
75}
76
77/*!
78 \reimp
79*/
80QPieSeries* QPieLegendMarker::series()
81{
82 Q_D(QPieLegendMarker);
83 return d->m_series;
84}
85
86/*!
87 Returns the slice of the pie related to the marker.
88*/
89QPieSlice* QPieLegendMarker::slice()
90{
91 Q_D(QPieLegendMarker);
92 return d->m_slice;
93}
94
95////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
96
97QPieLegendMarkerPrivate::QPieLegendMarkerPrivate(QPieLegendMarker *q, QPieSeries *series, QPieSlice *slice, QLegend *legend) :
98 QLegendMarkerPrivate(q,legend),
99 q_ptr(q),
100 m_series(series),
101 m_slice(slice)
102{
103 QObject::connect(sender: m_slice, SIGNAL(labelChanged()), receiver: this, SLOT(updated()));
104 QObject::connect(sender: m_slice, SIGNAL(brushChanged()), receiver: this, SLOT(updated()));
105 QObject::connect(sender: m_slice, SIGNAL(penChanged()), receiver: this, SLOT(updated()));
106}
107
108QPieLegendMarkerPrivate::~QPieLegendMarkerPrivate()
109{
110}
111
112QPieSeries* QPieLegendMarkerPrivate::series()
113{
114 return m_series;
115}
116
117QObject* QPieLegendMarkerPrivate::relatedObject()
118{
119 return m_slice;
120}
121
122void QPieLegendMarkerPrivate::updated()
123{
124 bool labelChanged = false;
125 bool brushChanged = false;
126 bool penChanged = false;
127
128 if (!m_customPen && (m_item->pen() != m_slice->pen())) {
129 m_item->setPen(m_slice->pen());
130 penChanged = true;
131 }
132 if (!m_customBrush && (m_item->brush() != m_slice->brush())) {
133 m_item->setBrush(m_slice->brush());
134 brushChanged = true;
135 }
136 if (!m_customLabel && (m_item->label() != m_slice->label())) {
137 m_item->setLabel(m_slice->label());
138 labelChanged = true;
139 }
140 invalidateLegend();
141
142 if (labelChanged)
143 emit q_ptr->labelChanged();
144 if (brushChanged)
145 emit q_ptr->brushChanged();
146 if (penChanged)
147 emit q_ptr->penChanged();
148}
149
150QT_CHARTS_END_NAMESPACE
151
152#include "moc_qpielegendmarker.cpp"
153#include "moc_qpielegendmarker_p.cpp"
154

source code of qtcharts/src/charts/legend/qpielegendmarker.cpp